Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6728291 | Melting vessels provided with a cooled bottom electrode | Manfred Schubert | 2004-04-27 |
| 6693949 | Method and device for operating electric arc furnaces and/or resistance furnaces | Manfred Schubert | 2004-02-17 |